ABB RELION REX640 Technical Manual page 870

Protection and control

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Table of Contents

Protection functions

Table 808: ROVPTOV Non group settings (Basic)

Values (Range)

Table 809: ROVPTOV Non group settings (Advanced)

Values (Range)

Reset delay time

ROVPTOV Monitored data

Table 810: ROVPTOV Monitored data

Technical data

Table 811: ROVPTOV Technical data

Characteristic

Operation accuracy

Retardation time

Operate time accuracy in definite

Suppression of harmonics

Residual voltage before fault = 0.0 × U

ted from random phase angle, results based on statistical distribution of 1000 measurements

Includes the delay of the signal output contact

Values (Range)

0.00...100.00

4=test/blocked

= 50 Hz, residual voltage with nominal frequency injec-

Depending on the frequency of the measured voltage:

±1.5% of the set value or ±0.002 × U

Typically 40 ms

Typically 0.96

±1.0% of the set value or ±20 ms

DFT: -50 dB at f = n × f

, where n = 2, 3, 4, 5,...

1MRS759142 F

Operation Off / On

Reset delay time

Ratio of start time / op-

Technical Manual